Following the Copenhagen Climate Conference in 2009, developed countries agreed to provide financial support in order to address the needs of developing countries, committing to mobilise $100 billion a year by 2020. This meant financing climate action both in terms of mitigation and adaptation measures, especially targeting the most vulnerable and least developed countries. The Green Climate Fund (GCF) became operational in 2014 as a mechanism for raising financial support, with funding for the first eight projects being approved on 6 November 2015. However, with the 2015 Paris Climate Conference (COP21) due to begin at the end of November, there are concerns that the developed world is not on track and that there is a lack of clarity over how financing commitments will be met. As COP21 approaches, the European Policy Centre (EPC) organised this Policy Dialogue with environmental policy and civil society figures to discuss the state of play ahead of the Conference, including what the $100 billion commitment means in practice and what the EU’s objectives on climate financing are, both pre- and post-2020. As mobilising financial resources will require both public and private financing, the panel explored the kind of sources of financing utilised at the moment and potential sources for the future.